Vulnerability Monitor

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CVE-2021-3345

_gcry_md_block_write in cipher/hash-common.c in Libgcrypt version 1.9.0 has a heap-based buffer overflow when the digest final function sets a large count value. It is recommended to upgrade to 1.9.1 or later.

Published

2021-01-29T15:15:13.083

Last Modified

2024-11-21T06:21:20.643

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

10.0

Weaknesses

Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	gnupg	libgcrypt	1.9.0	Yes
Application	oracle	communications_billing_and_revenue_management	12.0.0.3.0	Yes

References

https://bugs.gentoo.org/show_bug.cgi?id=767814 Issue Tracking, Vendor Advisory ([email protected])
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=512c0c75276949f13b6373b5c04f7065af750b08 ([email protected])
https://gnupg.org Vendor Advisory ([email protected])
https://lists.gnupg.org/pipermail/gnupg-announce/2021q1/000455.html Mailing List, Vendor Advisory ([email protected])
https://lists.gnupg.org/pipermail/gnupg-announce/2021q1/000456.html Mailing List, Patch, Vendor Advisory ([email protected])
https://www.oracle.com//security-alerts/cpujul2021.html Third Party Advisory ([email protected])
https://bugs.gentoo.org/show_bug.cgi?id=767814 Issue Tracking, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=512c0c75276949f13b6373b5c04f7065af750b08 (af854a3a-2127-422b-91ae-364da2661108)
https://gnupg.org Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.gnupg.org/pipermail/gnupg-announce/2021q1/000455.html Mailing List, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.gnupg.org/pipermail/gnupg-announce/2021q1/000456.html Mailing List, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.oracle.com//security-alerts/cpujul2021.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)